org.apache.tuscany.sca.databinding.xml.DOMWrapperHandler Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.databinding.xml;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.common.xml.dom.DOMHelper;
import org.apache.tuscany.sca.databinding.WrapperHandler;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class DOMWrapperHandler implements WrapperHandler {
private DOMHelper domHelper;
public DOMWrapperHandler(DOMHelper domHelper) {
super();
this.domHelper = domHelper;
}
public Node create(Operation operation, boolean input) {
WrapperInfo wrapperInfo = operation.getWrapper();
ElementInfo element = input ? wrapperInfo.getInputWrapperElement() : wrapperInfo.getOutputWrapperElement();
// Class wrapperClass = input ? wrapperInfo.getInputWrapperClass() : wrapperInfo.getOutputWrapperClass();
Document document = domHelper.newDocument();
QName name = element.getQName();
return DOMHelper.createElement(document, name);
}
public void setChildren(Node wrapper,
Object[] childObjects,
Operation operation, boolean input) {
List childElements = input? operation.getWrapper().getInputChildElements():
operation.getWrapper().getOutputChildElements();
for (int i = 0; i < childElements.size(); i++) {
setChild(wrapper, i, childElements.get(i), childObjects[i]);
}
}
public void setChild(Node wrapper, int i, ElementInfo childElement, Object value) {
Node node = (Node)value;
if (node.getNodeType() == Node.DOCUMENT_NODE) {
node = ((Document)node).getDocumentElement();
}
wrapper.appendChild(wrapper.getOwnerDocument().importNode(node, true));
}
public List getChildren(Node wrapper, Operation operation, boolean input) {
assert wrapper != null;
List childElements = input? operation.getWrapper().getInputChildElements():
operation.getWrapper().getOutputChildElements();
if (wrapper.getNodeType() == Node.DOCUMENT_NODE) {
wrapper = ((Document)wrapper).getDocumentElement();
}
List elements = new ArrayList();
NodeList nodes = wrapper.getChildNodes();
for (int j = 0; j < nodes.getLength(); j++) {
Node node = nodes.item(j);
if (node.getNodeType() == Node.ELEMENT_NODE) {
elements.add(node);
}
}
return elements;
}
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(Operation, boolean)
*/
public DataType getWrapperType(Operation operation, boolean input) {
WrapperInfo wrapper = operation.getWrapper();
ElementInfo element = input? wrapper.getInputWrapperElement(): wrapper.getOutputWrapperElement();
DataType wrapperType =
new DataTypeImpl(DOMDataBinding.NAME, Node.class, new XMLType(element));
return wrapperType;
}
public boolean isInstance(Object wrapperObj,
Operation operation,
boolean input) {
WrapperInfo wrapperInfo = operation.getWrapper();
ElementInfo element = input ? wrapperInfo.getInputWrapperElement() : wrapperInfo.getOutputWrapperElement();
List childElements =
input ? wrapperInfo.getInputChildElements() : wrapperInfo.getOutputChildElements();
Node wrapper = (Node)wrapperObj;
if (wrapper.getNodeType() == Node.DOCUMENT_NODE) {
wrapper = ((Document)wrapper).getDocumentElement();
}
QName elementName = new QName(wrapper.getNamespaceURI(), wrapper.getLocalName());
if (!element.getQName().equals(elementName)) {
return false;
}
Set names = new HashSet();
for (ElementInfo e : childElements) {
names.add(e.getQName());
}
NodeList nodes = wrapper.getChildNodes();
for (int j = 0; j < nodes.getLength(); j++) {
Node node = nodes.item(j);
if (node.getNodeType() == Node.ELEMENT_NODE) {
elementName = new QName(node.getNamespaceURI(), node.getLocalName());
if (!names.contains(elementName)) {
return false;
}
}
}
return true;
}
}